truancy
noun /ˈtruːənsi/
  /ˈtruːənsi/
[uncountable]- the practice of staying away from school without permission
- Truancy rates at the school are very high.
 
Extra Examples- a government campaign to cut truancy
 - measures to combat persistent truancy in our schools
 - parents who condone their children's truancy
 
Oxford Collocations Dictionaryadjective- persistent
 
- combat
 - tackle
 - cut
 - …
 
- level
 - rate
 - crackdown
 - …